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UNIT D STATES PATENT OFFICE.

SELDEN D. REDMAN,IOF NEWFANE, NEW YORK.

ANIMAL- T'ETH ER.

SPECIFICATION formingpart of LettersPatent 'No. 224,353, dated February 10, 1880.

Application filed June 27, 1879.

' the town of N ewfane, in the county of lNiagplaced rings or pins K L, which act as stops to prevent the ring passing beyond these points.

ara and State of New York, have invented new and useful Improvements in Animal-Tethers, of whichthe following is a specification.

Most tethers heretofore inuse exert a con tinual strain on the animal while feeding, caused by the weight or other device em ployed to take up the slack of the tether-line. In some the line, when drawn out to its greatest length, runs so near the ground as to become wet by the dew, causingit to stifi'enand crinkle, preventing its running freely through the taking-up device, thus allowing the tethered animal to become dangerously entangled in the line, and in none "is there any eflicient method of varying the length of the long arm of the bar, so as to accommodate the tether to move in less-confined limits of space.

To avoid or overcome these difficulties is theobject of my invention, of which thefollowing is a full description, reference being had to the accompanying drawing.

In the figure of the drawing, B is a post of suitable length set i|.1'theground,in the top of which is a fixed bolt, A, which passes through a diverging slot, 0 or D, in the rotating bar E, and secures it to the'post'. The slots 0 D closely lit the bolt on the under side of the bar, and from thence diverge to the upper side in the shorter arm of the bar just sufficiently' to allow the long arm of, the bartodip to any desired point, say F. The side of the slots next to the long arm should beabout perpendicular to the bar, so that the arm, when at rest, may form a rightangle with. the post.

The degree of dip and elevation may be varied by varying the divergence and direction of the slots. s 7 On the short arm of the bar is a movable weight, Gr, suflicient to balance it back as far as the regulating-slots will permit. On the: long arm is placed a ring or link, H, plain, or combined with rolls or pulleys to relieve friction, to which is attached the tether-line I. At the end J, and at other suitable points, are

, The rings K or L may be movable, in which case only one is'required.

If desired, the bar may be reversed by cutting the slots in a reversed way from that here described. I s

.The operation of the tether is as follows: Suppose the ring H to be at K. The tethered animal can then graze freely in a limited space at Mwithout straining on the tether-line I. As he moves toward the post-B he pulls upon the line and causes the long arm of the bar E to be depressed to F, lower than which it cannot go on account of the stop'slot O, and permits him to graze as far as the post B,'but no farther in that direction, though he can move freely in any other course. As he moves outward from the post the bar rises to its original position, the ring H" moves easily to J, and as he passes beyond the point 0 the bar is again depressed to F, and he is allowed to reach a point on the outer limit of the circle, the diameter of which is nearly double the united lengthof the long arm of the bar and the tether-line, anywhere within which the tethered animal can move freely and safely in any "direction. In this case the stop L isnot used. r

f To shorten the long arm, and hence lessen the diameter of the grazing-circle, the barE is suspended at the slot D. The same object may be obtained by securing'to theside of the bare strip of wood or metal with slots similar to those above described.

The length of the bar E, the position of the 7 weight G, and the number and location of the slots 0 D may be varied as desired. In changing the point of suspension of the bar the distance between that point and the movable stop K must not be lessened. What I claim is- -1. In rotating tethers, the adjustable bar E,

carrying the ring H and stop K, as described.

I 2. In an animal-tethenthe regulating-slots O l), in combination with the fixed bolt A, by which means the degree of (lip and elevation of the bar E may be controlled. 7

SELDEN, D. REDMAN. Witnesses: I f I I J. W. SW'INBURNE,

GEORGE FRAUENBERGER. 

